import java.util.Scanner;

public class Operators_Exercise2 {
    public static void main(String[] args) {
        double radius,height,pai=22/7;
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter the radius :");
        radius = sc.nextInt();
        System.out.println("Enter the height :");
        height = sc.nextInt();
        double Volume = pai *radius * radius *height;
        System.out.println("Volume is :"+ Volume);
    }
}
